You create a bubble of vastly accelerated time, which seems extremely bright because light leaves it far more rapidly than usual.

From within the bubble, lights from outside seem 1/(365 per level)th as bright. This generally reduces the brightness of places illuminated from the outside by one step.

Passing through the edge of the bubble is exceedingly dangerous, as some parts of the character will be orders of magnitude faster than other parts, causing massive pressure buildup and other unpleasant things. Characters with internal moving parts take 20d12 damage per manifester level if moving 100' per round or slower; if moving 500' per round or slower they take 10d8 damage per manifester level; if moving 2000' per round or slower they take 5d6 damage per manifester level; if moving 5000' per round or slower they take 2d6 damage per manifester level; if moving faster than 5000' per round they take 1d4 damage per manifester level.

Augment:

You can spend any number of additional power points to double the affected region for each point spent. This does not follow D&D's multiplication rule.

You can spend 3 power points to increase the range of Evolution Chamber to "1 mile/level", or 8 power points to increase the range to "Anywhere on this plane."

You can spend 4 power points to reduce the casting time of Evolution Chamber to 1 minute.

You can spend 3 power points to increase the duration inside to 1000 years/level, and the duration outside to 10 days. The damage for crossing the threshold is multiplied by 10.

You can spend 6 power points to increase the duration inside to 1000000 years/level, and the duration outside to 1 year. The damage for crossing the threshold is multiplied by 100.

You can spend 9 power points to increase the duration inside to 1000000000 years/level, and the duration outside to 10 years. The damage for crossing the threshold is multiplied by 1000.

You can spend 3 power points to reduce the duration outside by a factor of 100. The damage for crossing the threshold is multiplied by 10.

You can spend 6 power points to reduce the duration outside by a factor of 10000. The damage for crossing the threshold is multiplied by 100.

You can spend 9 power points to reduce the duration outside by a factor of 1000000. The damage for crossing the threshold is multiplied by 1000.

You can spend 4 power points to make the threshold completely impenetrable to all forms of transportation, including teleportation. The surface of the sphere looks completely black.